Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

Thanks! Looking at the llvm ir file, we find:

target datalayout = 
"e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32"
target triple = "armv6-unknown-linux-gnueabihf"

that does looks incorrect for armv7l softabi. We have the hardfloat gnueabi, 
AND armv6. However, I don't know if this influences
the generated IR to the point where it's unusable.

Looking at 
https://github.com/ghc/ghc/blob/95c1feeb9ce9b2d6a9453dc4da148b80a5ddce3d/compiler/llvmGen/LlvmCodeGen/Ppr.hs#L35-L86
I don't see a proper configuration for it yet though.

Now again we mix the llvm and gcc toolchain, and I don't have gcc on my system 
right now.

We can do the following though:
$ llc -O3 StgStartup.ll -o StgStartup.s
$ clang --target=arm-unknown-linux-gnueabihf -c StgStartup.s -v

and have this successfully produce an object file. As such I don't think the 
target triple given above is at fault here (apart from
potentially generating hard-float fp).

I would as such conclude that the issue is the argument passed to gcc as 
assembler here.  I'm a bit at a loss how to solve this here
right now.  GHC HEAD has seen especially in this area quite a bit of churn as 
well.

On top of my head, I've two suggestions:

- Try configuring with a LLVM toolchain. E.g. CC=arm-linux-gnueabi-clang
- Try GHC HEAD. If this still fails, you could try to sidestep the mangling and 
assembly logic, by adding -fast-llvm to the
  mk/flavour/.mk (e.g. quick-cross, perf-cross).

Cheers,
 Moritz


> On Oct 22, 2017, at 4:05 PM, shif...@nanotek.info wrote:
> 
> October 22, 2017 11:51 AM, "Moritz Angermann"  
> wrote:
> 
>> Can you rerun that command with -keep-llvm-files and attach the generated 
>> .ll file?
>> 
> 
> I rerun the same command by adding -keep-llvm-files and the file 
> "./rts/StgStartup.ll" has been created. Please find it attached.
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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 22, 2017 11:51 AM, "Moritz Angermann"  
wrote:

> Can you rerun that command with -keep-llvm-files and attach the generated .ll 
> file?
> 

I rerun the same command by adding -keep-llvm-files and the file 
"./rts/StgStartup.ll" has been created. Please find it attached.


StgStartup.ll
Description: Binary data
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Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

Can you rerun that command with -keep-llvm-files and attach the generated .ll 
file?

Cheers,
 Moritz

Sent from my iPhone

> On 22 Oct 2017, at 3:06 PM, shif...@nanotek.info wrote:
> 
> October 22, 2017 10:37 AM, "Moritz Angermann"  
> wrote:
> 
>> Could you try running this with `-v`? Hopefully, this time will will not 
>> stop somewhere in the middle, but rather give us the full output, and
>> also reproduce the errors.
>> 
> 
> 
> Understood.
> 
> # inplace/bin/ghc-stage1 -v -static  -O -H64m -Wall   -Iincludes 
> -Iincludes/dist -Iincludes/dist-derivedconstants/header 
> -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS 
> -this-unit-id rts -optc-DNOSMP -dcmm-lint  -i -irts -irts/dist/build 
> -Irts/dist/build -irts/dist/build/./autogen -Irts/dist/build/./autogen
>-O2-Wnoncanonical-monad-instances  -c rts/StgStartup.cmm -o 
> rts/dist/build/StgStartup.o
> Glasgow Haskell Compiler, Version 8.2.1, stage 1 booted by GHC version 8.2.1
> Using binary package database: 
> /tmp/ghc-8.2.1/inplace/lib/package.conf.d/package.cache
> package flags []
> loading package database /tmp/ghc-8.2.1/inplace/lib/package.conf.d
> wired-in package ghc-prim mapped to ghc-prim-0.5.1.0
> wired-in package integer-simple mapped to integer-simple-0.1.1.1
> wired-in package base mapped to base-4.10.0.0
> wired-in package rts mapped to rts
> wired-in package template-haskell mapped to template-haskell-2.12.0.0
> wired-in package ghc mapped to ghc-8.2.1
> wired-in package dph-seq not found.
> wired-in package dph-par not found.
> Created temporary directory: /tmp/ghc32190_0
> *** C Compiler:
> arm-linux-gnueabi-gcc -marm -fno-stack-protector -DTABLES_NEXT_TO_CODE 
> -DNOSMP -E -I includes -I includes/dist -I 
> includes/dist-derivedconstants/header -I includes/dist-ghcconstants/header -I 
> rts -I rts/dist/build -I rts/dist/build -I rts/dist/build/./autogen -I 
> /tmp/ghc-8.2.1/libraries/base/include -I /tmp/ghc-8.2.1/rts/dist/build -I 
> /tmp/ghc-8.2.1/includes -I 
> /tmp/ghc-8.2.1/includes/dist-derivedconstants/header -include 
> /tmp/ghc-8.2.1/includes/ghcversion.h -Dlinux_BUILD_OS -Dx86_64_BUILD_ARCH 
> -Dlinux_HOST_OS -Darm_HOST_ARCH '-D__GLASGOW_HASKELL_LLVM__=309' 
> -D__GLASGOW_HASKELL_TH__ -include/tmp/ghc32190_0/ghc_2.h -x 
> assembler-with-cpp rts/StgStartup.cmm -o /tmp/ghc32190_0/ghc_1.cmmcpp
> *** ParseCmm [/tmp/ghc32190_0/ghc_1.cmmcpp]:
> !!! ParseCmm [/tmp/ghc32190_0/ghc_1.cmmcpp]: finished in 2.50 milliseconds, 
> allocated 1.737 megabytes
> *** LLVM CodeGen:
> *** LLVM CodeGen:
> Using LLVM version: (3,9)
> *** CmmLint [Cmm$ghc_1.cmmcpp]:
> !!! CmmLint [Cmm$ghc_1.cmmcpp]: finished in 0.35 milliseconds, allocated 
> 0.082 megabytes
> !!! LLVM CodeGen: finished in 9.53 milliseconds, allocated 5.082 megabytes
> *** LLVM Optimiser:
> /usr/bin/opt-3.9 /tmp/ghc32190_0/ghc_4.ll -o /tmp/ghc32190_0/ghc_6.bc -O2 
> '--enable-tbaa=true'
> *** LLVM Compiler:
> /usr/bin/llc-3.9 -O3 '-relocation-model=static' /tmp/ghc32190_0/ghc_6.bc -o 
> /tmp/ghc32190_0/ghc_7.lm_s '--enable-tbaa=true'
> *** LLVM Mangler:
> !!! LLVM Mangler: finished in 0.81 milliseconds, allocated 0.369 megabytes
> *** Assembler:
> arm-linux-gnueabi-gcc -marm -fno-stack-protector -DTABLES_NEXT_TO_CODE 
> -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header 
> -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -Irts/dist/build 
> -Irts/dist/build/./autogen -x assembler -c /tmp/ghc32190_0/ghc_8.s -o 
> rts/dist/build/StgStartup.o
> /tmp/ghc32190_0/ghc_8.s: Assembler messages:
> 
> /tmp/ghc32190_0/ghc_8.s:41:0: error:
> Error: selected processor does not support `ldrd r0,r1,[r3,#64]' in ARM 
> mode
>   |
> 41 | ldrdr0, r1, [r3, #64]
>   | ^
> 
> /tmp/ghc32190_0/ghc_8.s:46:0: error:
> Error: selected processor does not support `strd r0,r1,[r3,#64]' in ARM 
> mode
>   |
> 46 | strdr0, r1, [r3, #64]
>   | ^
> 
> /tmp/ghc32190_0/ghc_8.s:108:0: error:
> Error: selected processor does not support `ldrd r0,r1,[r2,#64]' in ARM 
> mode
>|
> 108 | ldrdr0, r1, [r2, #64]
>| ^
> 
> /tmp/ghc32190_0/ghc_8.s:111:0: error:
> Error: selected processor does not support `strd r0,r1,[r2,#64]' in ARM 
> mode
>|
> 111 | strdr0, r1, [r2, #64]
>| ^
> 
> /tmp/ghc32190_0/ghc_8.s:137:0: error:
> Error: selected processor does not support `ldrd r0,r1,[r2,#64]' in ARM 
> mode
>|
> 137 | ldrdr0, r1, [r2, #64]
>| ^
> 
> /tmp/ghc32190_0/ghc_8.s:140:0: error:
> Error: selected processor does not support `strd r0,r1,[r2,#64]' in ARM 
> mode
>|
> 140 | strdr0, r1, [r2, #64]
>| ^
> 
> /tmp/ghc32190_0/ghc_8.s:163:0: error:
> Error: selected processor does not support `ldrd r0,r1,[r2,#64]' in ARM 
> mode
>|
> 163 | ldrdr0, r1, [r2, #64]
>| ^
> 
> /tmp/ghc32190_0/ghc_8.s:166:0: error:
> Error: selected processor does not support `strd r0,r1,[r2,#64]' in ARM 

Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

Could you try running this with `-v`? Hopefully, this time will will not 
stop somewhere in the middle, but rather give us the full output, and
also reproduce the errors.


> On Oct 22, 2017, at 2:33 PM, shif...@nanotek.info wrote:
> 
> "inplace/bin/ghc-stage1" -static  -O -H64m -Wall   -Iincludes -Iincludes/dist 
> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
> -Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
> -dcmm-lint  -i -irts -irts/
> dist/build -Irts/dist/build -irts/dist/build/./autogen 
> -Irts/dist/build/./autogen   -O2-Wnoncanonical-monad-instances  
> -c rts/StgStartup.cmm -o rts/dist/build/StgStartup.

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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 21, 2017 9:21 PM, shif...@nanotek.info wrote:

> October 21, 
> .00µ2017
> 2:.00ÿ3 
> PM,
> shif...@nanotek.info wrote:
> 
>> October 19, 
>> .00µ2017
>> 7:.00µ34 
>> PM,
>> shif...@nanotek.info wrote:
>> 
>>> October 19, 
>>> .00µ2017
>>> 6:.00ÿ8
>>>  PM, "Moritz Angermann"
>>>  wrote:
>> 
>> Shiftag,
>> 
>> any chance you could try this with 8.2 again then?
>>> Hi,
>>> 
>>> I'm going to try that and I will let you know ;)
>>> 
>>> Thanks guys.
>> 
>> Hi,
>> 
>> So I installed GHC-8.2.1 and then I tried to cross-compiling it. The 
>> ./configure went fine but the
>> make :
>> 
>> # make
>> Run "make install" to install
>> Makefile:46: recipe for target 'default' failed
>> make: *** [default] Error 1
>> 
>> Hmm...did I forgot something ?
> 
> Sorry my bad, I downloaded the wrong archive. Now its compiling, it should 
> work.
>

Hi Guys,

I hope you have a great Sunday.

I'm sorry, it still buggy. So I tried GHC-8.2.1 and I did the following stuff :

$ ./configure --target=arm-linux-gnueabi
[...]
--
Configure completed successfully.

   Building GHC version  : 8.2.1
 Git commit id  : 0cee25253f9f2cb4f19f021fd974bdad3c26a80b

   Build platform: x86_64-unknown-linux
   Host platform : x86_64-unknown-linux
   Target platform   : arm-unknown-linux

   Bootstrapping using   : /usr/bin/ghc
  which is version   : 8.2.1

   Using (for bootstrapping) : gcc
   Using gcc : arm-linux-gnueabi-gcc
  which is version   : 7.2.0
   Building a cross compiler : YES
   Unregisterised: NO
   hs-cpp   : arm-linux-gnueabi-gcc
   hs-cpp-flags : -E -undef -traditional
   ar   : /usr/bin/arm-linux-gnueabi-ar
   ld   : arm-linux-gnueabi-ld.gold
   nm   : /usr/bin/arm-linux-gnueabi-nm
   objdump  : /usr/bin/arm-linux-gnueabi-objdump
   ranlib   : /usr/bin/arm-linux-gnueabi-ranlib
   windres  :
   dllwrap  :
   Happy: /usr/bin/happy (1.19.7)
   Alex : /usr/bin/alex (3.2.3)
   Perl : /usr/bin/perl
   sphinx-build : /usr/bin/sphinx-build
   xelatex  :

   Using LLVM tools
 llc   : /usr/bin/llc-3.9
 opt   : /usr/bin/opt-3.9
  HsColour : /usr/bin/HsColour

   Tools to build Sphinx HTML documentation available: YES
  Tools to build Sphinx PDF documentation available: NO
--
  

# grep -v '#' mk/build.mk  | sed '/^$/d'
BuildFlavour = perf-cross
ifneq "$(BuildFlavour)" ""
include mk/flavours/$(BuildFlavour).mk
endif
HADDOCK_DOCS = NO
STRIP_CMD = :
WITH_TERMINFO = NO


# make
"inplace/bin/ghc-stage1" -optc-marm -optc-fno-stack-protector -optc-Wall 
-optc-Wall -optc-Wextra -optc-Wstrict-prototypes -optc-Wmissing-prototypes 
-optc-Wmissing-declarations -optc-Winline -optc-Waggregate-return 
-optc-Wpointer-arith -optc-Wmissing-noret
urn -optc-Wnested-externs -optc-Wredundant-decls -optc-Iincludes 
-optc-Iincludes/dist -optc-Iincludes/dist-derivedconstants/header 
-optc-Iincludes/dist-ghcconstants/header -optc-Irts -optc-Irts/dist/build 
-optc-DCOMPILING_RTS -optc-DNOSMP -optc-DUSE_LIBFF
I_FOR_ADJUSTORS -optc-fno-strict-aliasing -optc-fno-common 
-optc-Irts/dist/build/./autogen -optc-Werror=unused-but-set-variable 
-optc-Wno-error=inline -optc-O2 -optc-fomit-frame-pointer -optc-g 
-optc-DRtsWay=\"rts_v\" -optc-ffunction-sections -optc-fdata-
sections -static  -O -H64m -Wall   -Iincludes -Iincludes/dist 
-Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
-Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
-dcmm-lint  -i -irts -irts/dist/build -Irts
/dist/build -irts/dist/build/./autogen -Irts/dist/build/./autogen   -O2 
   -Wnoncanonical-monad-instances  -c rts/posix/GetEnv.c -o 
rts/dist/build/posix/GetEnv.o
"inplace/bin/ghc-stage1" -static  -O -H64m -Wall   -Iincludes -Iincludes/dist 
-Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
-Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
-dcmm-lint  -i -irts -irts/
dist/build -Irts/dist/build -irts/dist/build/./autogen 
-Irts/dist/build/./autogen   -O2-Wnoncanonical-monad-instances  -c 
rts/StgStartup.cmm -o rts/dist/build/StgStartup.o
/tmp/ghc22858_0/ghc_8.s: Assembler messages:

/tmp/ghc22858_0/ghc_8.s:41:0: error:
 Error: selected processor does not support `ldrd r0,r1,[r3,#64]' in ARM 
mode
|
 41 | ldrdr0, r1, [r3, #64]

Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 21, 
.00µ2017
2:.00ÿ3 PM,
shif...@nanotek.info wrote:

> October 19, 
> .00µ2017
> 7:.00µ34 
> PM,
> shif...@nanotek.info wrote:
> 
>> October 19, 
>> .00µ2017
>> 6:.00ÿ8 
>> PM, "Moritz Angermann"
>>  wrote:
>> 
>>> Shiftag,
>>> 
>>> any chance you could try this with 8.2 again then?
>> 
>> Hi,
>> 
>> I'm going to try that and I will let you know ;)
>> 
>> Thanks guys.
> 
> Hi,
> 
> So I installed GHC-8.2.1 and then I tried to cross-compiling it. The 
> ./configure went fine but the
> make :
> 
> # make
> Run "make install" to install
> Makefile:46: recipe for target 'default' failed
> make: *** [default] Error 1
> 
> Hmm...did I forgot something ?


Sorry my bad, I downloaded the wrong archive. Now its compiling, it should work.
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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 19, 
.00µ2017
7:.00µ34 PM,
shif...@nanotek.info wrote:

> October 19, 
> .00µ2017
> 6:.00ÿ8 
> PM, "Moritz Angermann"
>  wrote:
> 
>> Shiftag,
>> 
>> any chance you could try this with 8.2 again then?
> 
> Hi,
> 
> I'm going to try that and I will let you know ;)
> 
> Thanks guys.



Hi,

So I installed GHC-8.2.1 and then I tried to cross-compiling it. The 
./configure went fine but the make :

# make
Run "make install" to install
Makefile:46: recipe for target 'default' failed
make: *** [default] Error 1


Hmm...did I forgot something ?
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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 19, 
.00µ2017
6:.00ÿ8 
PM, "Moritz Angermann"
 wrote:

> Shiftag,
> 
> any chance you could try this with 8.2 again then?
> 


Hi,

I'm going to try that and I will let you know ;)

Thanks guys.
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Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

Shiftag,

any chance you could try this with 8.2 again then?

Cheers,
 Moritz

> On Oct 19, 2017, at 9:56 PM, Ben Gamari  wrote:
> 
> Moritz Angermann  writes:
> 
>> Ugh! This looks even worse. I'm a bit at a loss here, why this didn't even 
>> make it to the assembly stage...
>> 
> This was a known bug in 8.0. See #11784. IIRC I fixed it for 8.2.
> 
> Cheers,
> 
> - Ben
> 
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Re: Compiling natively GHC for ARMv7l softabi

[Ben Gamari]

Moritz Angermann  writes:

> Ugh! This looks even worse. I'm a bit at a loss here, why this didn't even 
> make it to the assembly stage...
>
This was a known bug in 8.0. See #11784. IIRC I fixed it for 8.2.

Cheers,

- Ben



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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 19, 2017 11:52 AM, "Moritz Angermann"  
wrote:

> Ugh! This looks even worse. I'm a bit at a loss here, why this didn't even 
> make it to the assembly
> stage...
> 
>> On Oct 19, 2017, at 3:32 PM, shif...@nanotek.info wrote:
>> 
>> October 19, 2017 10:34 AM, "Moritz Angermann"  
>> wrote:
>> 
>> "inplace/bin/ghc-stage1" -static -H32m -O -Wall -Iincludes -Iincludes/dist
>> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
>> -Irts -Irts/dist/build
>> -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP -dcmm-lint -i -irts 
>> -irts/dist/build
>> -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c 
>> rts/StgStartup.cmm -o
>> rts/dist/build/StgStartup.o
>>> run this with `-v`, to check the invorcations. I'm pretty certain some 
>>> flags to opt/llc are
>>> missing/wrong here.
>> 
>> Ok :)
>> 
>> Please see below :
>> 
>> $ inplace/bin/ghc-stage1 -v -static -H32m -O -Wall -Iincludes -Iincludes/dist
>> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
>> -Irts -Irts/dist/build
>> -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP -dcmm-lint -i -irts 
>> -irts/dist/build
>> -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c 
>> rts/StgStartup.cmm -o
>> rts/dist/build/StgStartup.o
>> Glasgow Haskell Compiler, Version 8.0.2, stage 1 booted by GHC version 8.0.2
>> Using binary package database: 
>> /tmp/ghc-8.0.2/inplace/lib/package.conf.d/package.cache
>> loading package database /tmp/ghc-8.0.2/inplace/lib/package.conf.d
>> wired-in package ghc-prim mapped to ghc-prim-0.5.0.0
>> wired-in package integer-gmp mapped to integer-gmp-1.0.0.1
>> wired-in package base mapped to base-4.9.1.0
>> wired-in package rts mapped to rts
>> wired-in package template-haskell mapped to template-haskell-2.11.1.0
>> wired-in package ghc mapped to ghc-8.0.2
>> wired-in package dph-seq not found.
>> wired-in package dph-par not found.
>> Hsc static flags:
>> Created temporary directory: /tmp/ghc25166_0
>> *** C Compiler:
>> /usr/bin/arm-linux-gnueabi-gcc -marm -fno-stack-protector 
>> -DTABLES_NEXT_TO_CODE -DNOSMP -E -I
>> includes -I includes/dist -I includes/dist-derivedconstants/header -I
>> includes/dist-ghcconstants/header -I rts -I rts/dist/build -I rts/dist/build 
>> -I
>> rts/dist/build/autogen -I /tmp/ghc-8.0.2/libraries/base/include -I
>> /tmp/ghc-8.0.2/libraries/integer-gmp/include -I 
>> /tmp/ghc-8.0.2/rts/dist/build -I
>> /tmp/ghc-8.0.2/includes -I 
>> /tmp/ghc-8.0.2/includes/dist-derivedconstants/header
>> '-D__GLASGOW_HASKELL__=800' -include /tmp/ghc-8.0.2/includes/ghcversion.h 
>> '-Dlinux_BUILD_OS=1'
>> '-Dx86_64_BUILD_ARCH=1' '-Dlinux_HOST_OS=1' '-Darm_HOST_ARCH=1' 
>> '-D__GLASGOW_HASKELL_LLVM__=307'
>> '-D__GLASGOW_HASKELL_TH__=0' -include/tmp/ghc25166_0/ghc_2.h -x 
>> assembler-with-cpp
>> rts/StgStartup.cmm -o /tmp/ghc25166_0/ghc_1.cmmcpp
>> *** ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]:
>> !!! ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]: finished in 4.00 milliseconds, 
>> allocated 2.082
>> megabytes
>> *** LLVM CodeGen:
>> *** LLVM CodeGen:
>> Using LLVM version: (3,7)
>> *** Deleting temp files:
>> Deleting: /tmp/ghc25166_0/ghc_5.c /tmp/ghc25166_0/ghc_4.ll 
>> /tmp/ghc25166_0/ghc_3.rsp
>> /tmp/ghc25166_0/ghc_2.h /tmp/ghc25166_0/ghc_1.cmmcpp
>> Warning: deleting non-existent /tmp/ghc25166_0/ghc_5.c
>> *** Deleting temp dirs:
>> Deleting: /tmp/ghc25166_0
>> ghc-stage1: panic! (the 'impossible' happened)
>> (GHC version 8.0.2 for arm-unknown-linux):
>> hscCmmFile: no_mod
>> 
>> Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug


For your information :

# ./configure --target=arm-linux-gnueabi --with-ld=arm-linux-gnueabi
[...]
--
Configure completed successfully.

   Building GHC version  : 8.0.2
  Git commit id  : 8c7250379d0d2bad1d07dfd556812ff7aa2c42e8

   Build platform: x86_64-unknown-linux
   Host platform : x86_64-unknown-linux
   Target platform   : arm-unknown-linux

   Bootstrapping using   : /usr/bin/ghc
  which is version   : 8.0.2

   Using gcc : /usr/bin/arm-linux-gnueabi-gcc
  which is version   : 7.2.0
   Building a cross compiler : YES
   hs-cpp   : /usr/bin/arm-linux-gnueabi-gcc
   hs-cpp-flags : -E -undef -traditional
   ld   : /usr/bin/arm-linux-gnueabi-ld.gold
   nm   : /usr/bin/arm-linux-gnueabi-nm
   objdump  : /usr/bin/arm-linux-gnueabi-objdump
   Happy: /usr/bin/happy (1.19.7)
   Alex : /usr/bin/alex (3.2.3)
   Perl : /usr/bin/perl
   sphinx-build : /usr/bin/sphinx-build
   xelatex  : 

   Using LLVM tools
  llc   : /usr/bin/llc
  opt   : /usr/bin/opt
   HsColour : /usr/bin/HsColour

   Tools to build Sphinx HTML documentation available: YES
   Tools to build Sphinx PDF documentation available: NO

Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

Ugh! This looks even worse. I'm a bit at a loss here, why this didn't even make 
it to the assembly stage...

> On Oct 19, 2017, at 3:32 PM, shif...@nanotek.info wrote:
> 
> October 19, 2017 10:34 AM, "Moritz Angermann"  
> wrote:
> 
>>> "inplace/bin/ghc-stage1" -static -H32m -O -Wall -Iincludes -Iincludes/dist
>>> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
>>> -Irts -Irts/dist/build
>>> -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP -dcmm-lint -i -irts 
>>> -irts/dist/build
>>> -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c 
>>> rts/StgStartup.cmm -o
>>> rts/dist/build/StgStartup.o
>> 
>> run this with `-v`, to check the invorcations. I'm pretty certain some flags 
>> to opt/llc are
>> missing/wrong here.
> 
> 
> Ok :)
> 
> Please see below :
> 
> $ inplace/bin/ghc-stage1 -v -static  -H32m -O -Wall  -Iincludes 
> -Iincludes/dist -Iincludes/dist-derivedconstants/header 
> -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS 
> -this-unit-id rts -optc-DNOSMP -dcmm-lint  -i -irts -irts/dist/build 
> -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen   
> -O2 -c rts/StgStartup.cmm -o rts/dist/build/StgStartup.o
> Glasgow Haskell Compiler, Version 8.0.2, stage 1 booted by GHC version 8.0.2
> Using binary package database: 
> /tmp/ghc-8.0.2/inplace/lib/package.conf.d/package.cache
> loading package database /tmp/ghc-8.0.2/inplace/lib/package.conf.d
> wired-in package ghc-prim mapped to ghc-prim-0.5.0.0
> wired-in package integer-gmp mapped to integer-gmp-1.0.0.1
> wired-in package base mapped to base-4.9.1.0
> wired-in package rts mapped to rts
> wired-in package template-haskell mapped to template-haskell-2.11.1.0
> wired-in package ghc mapped to ghc-8.0.2
> wired-in package dph-seq not found.
> wired-in package dph-par not found.
> Hsc static flags:
> Created temporary directory: /tmp/ghc25166_0
> *** C Compiler:
> /usr/bin/arm-linux-gnueabi-gcc -marm -fno-stack-protector 
> -DTABLES_NEXT_TO_CODE -DNOSMP -E -I includes -I includes/dist -I 
> includes/dist-derivedconstants/header -I includes/dist-ghcconstants/header -I 
> rts -I rts/dist/build -I rts/dist/build -I rts/dist/build/autogen -I 
> /tmp/ghc-8.0.2/libraries/base/include -I 
> /tmp/ghc-8.0.2/libraries/integer-gmp/include -I /tmp/ghc-8.0.2/rts/dist/build 
> -I /tmp/ghc-8.0.2/includes -I 
> /tmp/ghc-8.0.2/includes/dist-derivedconstants/header 
> '-D__GLASGOW_HASKELL__=800' -include /tmp/ghc-8.0.2/includes/ghcversion.h 
> '-Dlinux_BUILD_OS=1' '-Dx86_64_BUILD_ARCH=1' '-Dlinux_HOST_OS=1' 
> '-Darm_HOST_ARCH=1' '-D__GLASGOW_HASKELL_LLVM__=307' 
> '-D__GLASGOW_HASKELL_TH__=0' -include/tmp/ghc25166_0/ghc_2.h -x 
> assembler-with-cpp rts/StgStartup.cmm -o /tmp/ghc25166_0/ghc_1.cmmcpp
> *** ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]:
> !!! ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]: finished in 4.00 milliseconds, 
> allocated 2.082 megabytes
> *** LLVM CodeGen:
> *** LLVM CodeGen:
> Using LLVM version: (3,7)
> *** Deleting temp files:
> Deleting: /tmp/ghc25166_0/ghc_5.c /tmp/ghc25166_0/ghc_4.ll 
> /tmp/ghc25166_0/ghc_3.rsp /tmp/ghc25166_0/ghc_2.h /tmp/ghc25166_0/ghc_1.cmmcpp
> Warning: deleting non-existent /tmp/ghc25166_0/ghc_5.c
> *** Deleting temp dirs:
> Deleting: /tmp/ghc25166_0
> ghc-stage1: panic! (the 'impossible' happened)
>  (GHC version 8.0.2 for arm-unknown-linux):
>   hscCmmFile: no_mod
> 
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 19, 2017 10:34 AM, "Moritz Angermann"  
wrote:

>> "inplace/bin/ghc-stage1" -static -H32m -O -Wall -Iincludes -Iincludes/dist
>> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
>> -Irts -Irts/dist/build
>> -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP -dcmm-lint -i -irts 
>> -irts/dist/build
>> -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c 
>> rts/StgStartup.cmm -o
>> rts/dist/build/StgStartup.o
> 
> run this with `-v`, to check the invorcations. I'm pretty certain some flags 
> to opt/llc are
> missing/wrong here.


Ok :)

Please see below :

$ inplace/bin/ghc-stage1 -v -static  -H32m -O -Wall  -Iincludes -Iincludes/dist 
-Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
-Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
-dcmm-lint  -i -irts -irts/dist/build -irts/dist/build/autogen 
-Irts/dist/build -Irts/dist/build/autogen   -O2 -c 
rts/StgStartup.cmm -o rts/dist/build/StgStartup.o
Glasgow Haskell Compiler, Version 8.0.2, stage 1 booted by GHC version 8.0.2
Using binary package database: 
/tmp/ghc-8.0.2/inplace/lib/package.conf.d/package.cache
loading package database /tmp/ghc-8.0.2/inplace/lib/package.conf.d
wired-in package ghc-prim mapped to ghc-prim-0.5.0.0
wired-in package integer-gmp mapped to integer-gmp-1.0.0.1
wired-in package base mapped to base-4.9.1.0
wired-in package rts mapped to rts
wired-in package template-haskell mapped to template-haskell-2.11.1.0
wired-in package ghc mapped to ghc-8.0.2
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags:
Created temporary directory: /tmp/ghc25166_0
*** C Compiler:
/usr/bin/arm-linux-gnueabi-gcc -marm -fno-stack-protector -DTABLES_NEXT_TO_CODE 
-DNOSMP -E -I includes -I includes/dist -I 
includes/dist-derivedconstants/header -I includes/dist-ghcconstants/header -I 
rts -I rts/dist/build -I rts/dist/build -I rts/dist/build/autogen -I 
/tmp/ghc-8.0.2/libraries/base/include -I 
/tmp/ghc-8.0.2/libraries/integer-gmp/include -I /tmp/ghc-8.0.2/rts/dist/build 
-I /tmp/ghc-8.0.2/includes -I 
/tmp/ghc-8.0.2/includes/dist-derivedconstants/header 
'-D__GLASGOW_HASKELL__=800' -include /tmp/ghc-8.0.2/includes/ghcversion.h 
'-Dlinux_BUILD_OS=1' '-Dx86_64_BUILD_ARCH=1' '-Dlinux_HOST_OS=1' 
'-Darm_HOST_ARCH=1' '-D__GLASGOW_HASKELL_LLVM__=307' 
'-D__GLASGOW_HASKELL_TH__=0' -include/tmp/ghc25166_0/ghc_2.h -x 
assembler-with-cpp rts/StgStartup.cmm -o /tmp/ghc25166_0/ghc_1.cmmcpp
*** ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]:
!!! ParseCmm [/tmp/ghc25166_0/ghc_1.cmmcpp]: finished in 4.00 milliseconds, 
allocated 2.082 megabytes
*** LLVM CodeGen:
*** LLVM CodeGen:
Using LLVM version: (3,7)
*** Deleting temp files:
Deleting: /tmp/ghc25166_0/ghc_5.c /tmp/ghc25166_0/ghc_4.ll 
/tmp/ghc25166_0/ghc_3.rsp /tmp/ghc25166_0/ghc_2.h /tmp/ghc25166_0/ghc_1.cmmcpp
Warning: deleting non-existent /tmp/ghc25166_0/ghc_5.c
*** Deleting temp dirs:
Deleting: /tmp/ghc25166_0
ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 8.0.2 for arm-unknown-linux):
   hscCmmFile: no_mod

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
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Re: Compiling natively GHC for ARMv7l softabi

[Moritz Angermann]

> 
> "inplace/bin/ghc-stage1" -static  -H32m -O -Wall  -Iincludes -Iincludes/dist 
> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
> -Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
> -dcmm-lint  -i -irts -irts/dist/build -irts/dist/build/autogen 
> -Irts/dist/build -Irts/dist/build/autogen   -O2 -c 
> rts/StgStartup.cmm -o rts/dist/build/StgStartup.o

run this with `-v`, to check the invorcations. I'm pretty certain some flags to 
opt/llc are missing/wrong here.

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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 18, 2017 6:51 PM, "Ben Gamari"  wrote:

> shif...@nanotek.info writes:
> 
>> October 17, 2017 10:45 PM, "Ben Gamari"  wrote:
>> 
>> Hi Guys,
>> 
>> Thanks a mil !!!
> 
> Great!
> 
> Do let us know if anything else goes boom.
> 
> Cheers,
> 
> - Ben


Hi,

I'm afraid I have a very bad news. So it goes boom again and it's like a 
nuclear bomb :(. So I'm still cross-compiling version 8.0.2 on GNU/Linux with 
arm-linux-gnueabi compiling suite. As reminders, my target architecture is 
armv7l soft-abi with neon FPU.

I have the following error at make step :


===--- building final phase
make --no-print-directory -f ghc.mk phase=final all
"inplace/bin/ghc-stage1" -static  -H32m -O -Wall  -Iincludes -Iincludes/dist 
-Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header 
-Irts -Irts/dist/build -DCOMPILING_RTS -this-unit-id rts -optc-DNOSMP 
-dcmm-lint  -i -irts -irts/dist/build -irts/dist/build/autogen 
-Irts/dist/build -Irts/dist/build/autogen   -O2 -c 
rts/StgStartup.cmm -o rts/dist/build/StgStartup.o
/tmp/ghc24064_0/ghc_8.s: Assembler messages:

/tmp/ghc24064_0/ghc_8.s:38:0: error:
  
/tmp/ghc24064_0/ghc_8.s:42:0: error:
 Error: selected processor does not support `strd r0,r1,[r7,#64]' in ARM 
mode

/tmp/ghc24064_0/ghc_8.s:131:0: error:
 Error: selected processor does not support `ldrd r0,r1,[r3,#64]' in ARM 
mode

/tmp/ghc24064_0/ghc_8.s:134:0: error:
 Error: selected processor does not support `strd r0,r1,[r3,#64]' in ARM 
mode
 `arm-linux-gnueabi-gcc' failed in phase `Assembler'. (Exit code: 1)
 rts/ghc.mk:255: recipe for target 'rts/dist/build/StgStartup.o' failed
 make[1]: *** [rts/dist/build/StgStartup.o] Error 1
 Makefile:129: recipe for target 'all' failed
 make: *** [all] Error 2


So I checked on Google and I found this:

   https://ghc.haskell.org/trac/ghc/ticket/11058

Hmm...do I have some hope ?

Cheers
  Shiftag
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Re: Compiling natively GHC for ARMv7l softabi

[Ben Gamari]

shif...@nanotek.info writes:

> October 17, 2017 10:45 PM, "Ben Gamari"  wrote:
>
> Hi Guys,
>
> Thanks a mil !!!
>
Great!

Do let us know if anything else goes boom.

Cheers,

- Ben


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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

October 17, 2017 10:45 PM, "Ben Gamari"  wrote:

> Brandon Allbery  writes:
> 
>> On Tue, Oct 17, 2017 at 12:41 AM,  wrote:
>> 
>>> utils/ghc-cabal/ghc.mk:48: recipe for target 
>>> 'utils/ghc-cabal/dist/build/tmp/ghc-cabal'
>>> failed
>>> make[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Killed
>> 
>> The OOM killer got you. Add swap if you can.
> 
> Exactly.
> 
> Cheers,
> 
> - Ben


Hi Guys,

Thanks a mil !!!


Well, add a swap if I can ? Yes, we can :)

$ dd if=/dev/zero of=/tmp/swap bs=1M count=4096
$ chmod 600 /tmp/swap
$ mkswap /tmp/swap
$ swapon /tmp/swap
$ swapon -s

Here we go, now it's fixed. I have an other issue but I can figure it out 
myself.

Cheers,
  Shiftag
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Re: Compiling natively GHC for ARMv7l softabi

[Ben Gamari]

Brandon Allbery  writes:

> On Tue, Oct 17, 2017 at 12:41 AM,  wrote:
>
>> utils/ghc-cabal/ghc.mk:48: recipe for target 
>> 'utils/ghc-cabal/dist/build/tmp/ghc-cabal'
>> failed
>> make[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Killed
>>
>
> The OOM killer got you. Add swap if you can.
>
Exactly.

Cheers,

- Ben



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Re: Compiling natively GHC for ARMv7l softabi

[Brandon Allbery]

On Tue, Oct 17, 2017 at 12:41 AM,  wrote:

> utils/ghc-cabal/ghc.mk:48: recipe for target 
> 'utils/ghc-cabal/dist/build/tmp/ghc-cabal'
> failed
> make[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Killed
>

The OOM killer got you. Add swap if you can.

-- 
brandon s allbery kf8nh   sine nomine associates
allber...@gmail.com  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net
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Re: Compiling natively GHC for ARMv7l softabi

[shiftag]

> shif...@nanotek.info writes:
> 
>> Hi List,
>> 
>> I would like to install GHC for my CPU which is an ARMv7L Soft-ABI
>> NEON FPU. I read some stuff on ARM and GHC related. So it appears that
>> an installation is possible but with a RPi. The problem is the stack
>> binary which has been compiled for Hard-Float target. So it should not
>> be difficult to make it work for my architecture.
> 
> Indeed I suspect you are right; it should be fairly straightforward to
> build GHC for your platform.
> 
>> I checked for stack sources (stack-1.5.1.tar.gz) but I have any clue
>> about how to compile it. Can you give me an hand ?
> 
> First you will need to build GHC itself. This will be a two-step
> process:
> 
> 1. First build a cross-compiler [1] for your ARMv7L target on a machine
> with a working GHC (e.g. an amd64 machine).
> 
> 2. Transfer this compiler to your target and use it to build a native
> GHC
> 
> Let us know if you have any trouble.
> 
> Cheers,
> 
> - Ben
> 
> [1] https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling


Thank you.

So, I succeed to install GHC on x64 GNU/Linux machine. However, I have an issue 
at Stage1 while
cross-compiling. I have the following error :

# make
===--- building phase 0
make --no-print-directory -f ghc.mk phase=0 phase_0_builds
utils/genprimopcode/ghc.mk:19: utils/genprimopcode/dist/package-data.mk: No 
such file or directory
utils/deriveConstants/ghc.mk:19: utils/deriveConstants/dist/package-data.mk: No 
such file or
directory
utils/genapply/ghc.mk:23: utils/genapply/dist/package-data.mk: No such file or 
directory
libraries/hpc/ghc.mk:3: libraries/hpc/dist-boot/package-data.mk: No such file 
or directory
libraries/binary/ghc.mk:3: libraries/binary/dist-boot/package-data.mk: No such 
file or directory
libraries/Cabal/Cabal/ghc.mk:3: 
libraries/Cabal/Cabal/dist-boot/package-data.mk: No such file or
directory
libraries/ghc-boot-th/ghc.mk:3: 
libraries/ghc-boot-th/dist-boot/package-data.mk: No such file or
directory
libraries/ghc-boot/ghc.mk:3: libraries/ghc-boot/dist-boot/package-data.mk: No 
such file or
directory
libraries/template-haskell/ghc.mk:3: 
libraries/template-haskell/dist-boot/package-data.mk: No such
file or directory
libraries/hoopl/ghc.mk:3: libraries/hoopl/dist-boot/package-data.mk: No such 
file or directory
libraries/transformers/ghc.mk:3: 
libraries/transformers/dist-boot/package-data.mk: No such file or
directory
libraries/terminfo/ghc.mk:3: libraries/terminfo/dist-boot/package-data.mk: No 
such file or
directory
compiler/ghc.mk:584: compiler/stage1/package-data.mk: No such file or directory
utils/hsc2hs/ghc.mk:15: utils/hsc2hs/dist/package-data.mk: No such file or 
directory
utils/ghc-pkg/ghc.mk:60: utils/ghc-pkg/dist/package-data.mk: No such file or 
directory
utils/dll-split/ghc.mk:23: utils/dll-split/dist-install/package-data.mk: No 
such file or directory
ghc/ghc.mk:111: ghc/stage1/package-data.mk: No such file or directory
"/usr/bin/ghc" -H32m -O -Wall \
-optc-Wall -optc-fno-stack-protector \
\
-hide-all-packages \
-package base -package array -package time -package containers -package 
bytestring -package deepseq
-package process -package pretty -package directory -package unix \
--make utils/ghc-cabal/Main.hs -o utils/ghc-cabal/dist/build/tmp/ghc-cabal \
-no-user-package-db \
-Wall -fno-warn-unused-imports -fno-warn-warnings-deprecations \
-DCABAL_VERSION=1,24,2,0 \
-DMIN_VERSION_binary_0_8_0 \
-DBOOTSTRAPPING \
-optP-include -optPutils/ghc-cabal/cabal_macros_boot.h \
-odir bootstrapping \
-hidir bootstrapping \
-ilibraries/Cabal/Cabal \
-ilibraries/binary/src -DGENERICS \
-ilibraries/filepath \
-ilibraries/hpc \

[53 of 95] Compiling Distribution.PackageDescription (
libraries/Cabal/Cabal/Distribution/PackageDescription.hs,
bootstrapping/Distribution/PackageDescription.o )
utils/ghc-cabal/ghc.mk:48: recipe for target 
'utils/ghc-cabal/dist/build/tmp/ghc-cabal' failed
make[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Killed
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

I checked Google and I found the following patch :
https://ghc.haskell.org/trac/ghc/ticket/8709

But it didn't work. Do you have an idea to fix it ?

Cheers
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Re: Compiling natively GHC for ARMv7l softabi

[Ben Gamari]

shif...@nanotek.info writes:

> Hi List,
>
> I would like to install GHC for my CPU which is an ARMv7L Soft-ABI
> NEON FPU. I read some stuff on ARM and GHC related. So it appears that
> an installation is possible but with a RPi. The problem is the stack
> binary which has been compiled for Hard-Float target. So it should not
> be difficult to make it work for my architecture.
>
Indeed I suspect you are right; it should be fairly straightforward to
build GHC for your platform. 

> I checked for stack sources (stack-1.5.1.tar.gz) but I have any clue
> about how to compile it. Can you give me an hand ?
>
First you will need to build GHC itself. This will be a two-step
process:

 1. First build a cross-compiler [1] for your ARMv7L target on a machine
with a working GHC (e.g. an amd64 machine).

 2. Transfer this compiler to your target and use it to build a native
GHC

Let us know if you have any trouble.

Cheers,

- Ben



[1] https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling


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Compiling natively GHC for ARMv7l softabi

[shiftag]

Hi List,

I would like to install GHC for my CPU which is an ARMv7L Soft-ABI NEON FPU. I 
read some stuff on ARM and GHC related. So it appears that an installation is 
possible but with a RPi. The problem is the stack binary which has been 
compiled for Hard-Float target. So it should not be difficult to make it work 
for my architecture.

I checked for stack sources (stack-1.5.1.tar.gz) but I have any clue about how 
to compile it. Can you give me an hand ?

Cheers,

PS: For info, usually I compiled natively that way : "-march=armv7-a -mfpu=neon 
-mtune=cortex-a9"
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